NB/T 47021  法兰 RF 300-1.0 δs=16

1 RF 300-1.0 δs=16

SP-12

WN80(B)-16 RF

WN 800-150 RF

PL 650(B)-6 RFj@5@RFfR.6A=7-1.6/3fR.6A=7-1.6/

PL125-16FFAA=165/€00-1

B WN 1000-150 RF S=10

WN150-150RF B=154

WN 125(B)-16 RF

WN250(A)-2500RJذ ذˆï؟½6RF S=4×40-Sch80 TR300-0.66/u00pampqH4